fix(deps): update dependency @netlify/serverless-functions-api to v1.19.0 (#513)

[![Mend
Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[@netlify/serverless-functions-api](https://togithub.com/netlify/serverless-functions-api)
| [`1.18.5` ->
`1.19.0`](https://renovatebot.com/diffs/npm/@netlify%2fserverless-functions-api/1.18.5/1.19.0)
|
[![age](https://developer.mend.io/api/mc/badges/age/npm/@netlify%2fserverless-functions-api/1.19.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@netlify%2fserverless-functions-api/1.19.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@netlify%2fserverless-functions-api/1.18.5/1.19.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@netlify%2fserverless-functions-api/1.18.5/1.19.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>netlify/serverless-functions-api
(@&#8203;netlify/serverless-functions-api)</summary>

###
[`v1.19.0`](https://togithub.com/netlify/serverless-functions-api/compare/a28cbf42b3d48de7bc9617b9145f99cfdf2deeed...9ac79412d3d3c69293992e4d4618723a4b53b210)

[Compare
Source](https://togithub.com/netlify/serverless-functions-api/compare/a28cbf42b3d48de7bc9617b9145f99cfdf2deeed...9ac79412d3d3c69293992e4d4618723a4b53b210)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Mend
Renovate](https://www.mend.io/free-developer-tools/renovate/). View
repository job log
[here](https://developer.mend.io/github/netlify/functions).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy40MjEuOSIsInVwZGF0ZWRJblZlciI6IjM3LjQyMS45IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJkZXBlbmRlbmNpZXMiLCJqYXZhc2NyaXB0Il19-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -79,7 +79,7 @@
     "test": "test"
   },
   "dependencies": {
-    "@netlify/serverless-functions-api": "1.18.5"
+    "@netlify/serverless-functions-api": "1.19.0"
   },
   "devDependencies": {
     "@arethetypeswrong/cli": "^0.15.0",